This is the circuit that I'm trying to work with.(adsbygoogle = window.adsbygoogle || []).push({});

Essentially, as far as I can see it's a voltage divider connected to a voltage follower. I have the output of the first op amp as: H(s)=S_{1}/In_{1}= 1/10 = 0.1.

However I'm not sure if there are how to obtain characteristics of such a simple transfer function. When I put it in wolfram mathematica to see the Bode Plot; it says something about it not being a real transfer function (works fine when I put a random s in there).

My guess for the circuit is that the gain is always 0.1, and that there should be no phase shift. Can anyone say if I am missing anything? Or point me in the direction of obtaining a mathematical proof?

Also what is the significance of the resistor that is said to be added for bias reasons. I'm finding it difficult to find resources that can explain it to me.

Thanks,

M

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# Homework Help: Finding the transfer Function of a Voltage Buffer

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